From bad and Japanese味(aji), or perhaps directly from the Japanese expression 味が悪い (aji ga warui), literally “the flavour is bad”, i.e. “there is bad aji”.
(go) A lingering weakness in a player’s position in some part of the board, which may trouble them, especially by facilitating a later attack, by hampering their play there or by the effort required to repair it.
Synonym:aji(may also refer to other latent possibilities)